Indexed book



July 12, 1932.

F. H. ELLISON INDEXED BOOK Filed Jan. 10. 1950 I N VEN TOR.

FRANKHELUsON,

ATTORNEY.

15 ressions and is not Patented July 1 2,

( N TED s'm'ras PAraNr orrlcs ram a. rumor, or mum raw Yon:

' maxim 300:

Application filed January 10,1980. Serial I0. 419,972,

My invention'relates to an indexed book, a method of producing the same,and a ratus to be used in the practice of the met 0d.

It is customary to index books or files, for

5 ready reference. One method consists in cutting awa the edge of thebook to produce a stepped border and to rint letters in alphabeticalorder upon t e stepped border.

Another method is to cut vlde such edge t the depressions with lettersarranged in a1 habetical order. It is also old to secure ta s to theedges of books, with or without the stepped arrangement or deis lost inthe-use of such books. Telephone directories, which 'are frequentlyused, are manufactured as cheaply as possible andit generally customaryto equipthe same with an index at the edge.

In accordance with my able to form an alphabetlcal index upon the edgeof a book, such as a telephone directory, without materially increasingthe costof production of the same by printing the chem, ters or linesupon the pa es 0 the book as theyare being printed, an the charactersare so co-related that when the leaves of the book are assembled in thecomplete book, the albe produced. In connection with the alphabeticalindex, I rovide phabetical index will depth lines, defining orindicating t e area or thickne'ssof the sections of the book designatedby the index letters, thus enabling the user to readily open the bookwithin the proper section designated by-the' index letter.

In the accompanying drawing, forming a part of this. specification, andin which like numerals are employed to designate like parts throughoutthe same, Fi ure 1 is an edge elevation of a book showing the al formedduring t e printin Figure2ris an enlar vation of the edge. of t indexletter,

of the book, e fragmentary elefinger holes or del0 pressions in the edgeof the book and to prothese tabs carry the letters."

invention, I am habetical' index, which is.

' to cut the ed e book, showing one Figure3 is a. fragmentary sideelevation of one leaf of the book, as viewed from line H ofFigure2, p

Figure 4 is a similar view as viewed from line 44 of Figure 2.

In Figure 1, the numeral 26 designates a. book having an alphabeticalindex formed upon the edge of the same, embodying index letters 27.Associated with these letters'are depth lines 28 and thumb indieatinglines 29,- preferably curved, as tory results are obtained by em loyingone depth line 28 arranged near and above each index letter 27, althoughtwo depth lines may be employed, if desired, as shown 'in conshow'n,Satisfac-.

and associated elements shown in.Fi are formed during theprinting of thebook. .To accomplish thls, the le ves of the book, see particularlyFigures 3 e d 4, have lines 30 printed thereon, sides of the same, anthis rinting extends to the free edgejof the lea The lines 30throughout: the same alphabetical section or 'unit of the book are intransverse alinement and hence produce, when the leaves are as sembledin the closed. position, the depth line 28, for that alphabeticalsection, precisely indicating theexact thickness of such section. The inex letter 27, is produced by printing lines 31, preferably u 11 bothsides of the leaves, and u n. asugzsient number of the leaves to pro acethe index letter, the printed lines upon the several leaves being so co--related that the will produce the index let- (preferably upon both Iter 27 whenthe caves of the book are in the closed position. The thumbindicating line 29 is produced by lines 32, preferably printed upon both,sides of a suitable number of leaves and these linesv 32 are soco-related that the line 29 willbe prbdueedwhen the leaves are in theclosed position. In printing the several lines 30,31 and 82, upon theleaves, at the ed 7 vary nthdeplotmwlthfin the d bl o e eaves, us ren eit'possi e gm e of the book, w1% variations without liab ity ofdestroying the index.

The printed characters 80, 31 and 82 extend-to or over the free edge ofthe paper,

' thereon, such lines may limits of the marand since these charactersare preferably rinted upon both sides of the sheet,.the

mkthoroughly penetrates into the sheet and and is visible from the same.

Having thus described my inventlon, I

claim I 1. A plurality of assembled leaves produc-' ing a stack,successive leaves having marks upon their faces extending to the ed ofthe leaves and visible at such edges, t e arrangement of the marks beinsuch that the assembled marks produce a c aracter.

2. A plurality of assembled leaves producing a stack, some of thesuccessive leaves each having a single mark printed upon the facethereof and other of the assembled leaves each having a plurality ofspaced marks printed upon the faces thereof, all of the marks extendingto the edges of the leaves and visible at the edges, the arrangement ofthe marks being such that the assembled marks produce a letter.

3. A plurality of assembled leaves producing a stack, some of thesuccessive leaves having a single mark u on the faces thereof, and otherof the assem bled leaves having a pluralit of marks upon the facesthereof all of t emarks extendin to the ed 0 the leaves and visible at te edges, t e arrangement of the marks being such that the assembledmarks produce a letter, said leaves bein also provided with separatemarks extending to the edges thereof, and arranged near the letter, theseparate marks when assembled producin a depth auge.

In testimony w ereof I a my signature.

FRANK ELLISON.

